The Following Data Were Collected on the Number of Study

question 5

Essay

The following data were collected on the number of study hours per week,and the current GPA of 6 students at a local college.
$$\begin{array} { l c } \text { GPA } & \text { No. of Study Hours/Week } \\\hline 3.95 & 35 \\3.00 & 28 \\2.20 & 10 \\2.5 & 15 \\3.5 & 30 \\2.00 & 7\end{array}$$
a.Develop a regression model to predict GPA based on the number of study hours.
b.What percent of the total variation in GPA has been explained by study hours?
c.If a student studies 20 hours per week,what would you estimate the GPA to be?

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Definitions:

Replenishment Time

The duration required to refill inventory or stock, from the moment an order is placed until its receipt and readiness for sale or use.

Lead Time

The amount of time that elapses between the initiation of a process and its completion. In supply chain management, it often refers to the time from placing an order to its delivery.

Ordering

The process of requesting and procuring goods or services from suppliers or vendors.

Received

The act of accepting or obtaining something that has been sent or given.